Which Of The Following Is Lowest Memory Hierarchy?

Which of the following is main memory?

Which of the following is a main memory1)Auxiliary memory.2)Secondary memory3)Virtual memory.4)Cache memory.5)NULL.

What are the 3 types of memory?

Problems can occur at any of these stages. The three main forms of memory storage are sensory memory, short-term memory, and long-term memory.

What is memory hierarchy explain with examples?

In computer architecture, the memory hierarchy separates computer storage into a hierarchy based on response time. Since response time, complexity, and capacity are related, the levels may also be distinguished by their performance and controlling technologies.

Why do we need memory hierarchy?

On top of the memory hierarchy memory has faster access time, less capacity and higher cost per bit stored. At the bottom there is larger storage capacity, slower access time and lower cost per bit stored. The cache memory is used in between the CPU and the main memory to enhance the speed of main memory.

What is memory hierarchy in operating system?

The memory hierarchy system consists of all storage devices contained in a computer system from the slow Auxiliary Memory to fast Main Memory and to smaller Cache memory. Auxillary memory access time is generally 1000 times that of the main memory, hence it is at the bottom of the hierarchy.

Which of the following is lowest in memory?

5 . Which of the following is lowest in memory hierarchy?Cache memory.Secondary memory.Registers.RAM.None of these.

Which circuit is used to address memory locations?

Flip-Flop circuit is used as a ‘Memory device’ in computers.A flip-flop is a device which stores a single bit (binary digit) of data; one of its two states represents a “one” and the other represents a “zero”.More items…•

What are the memory types?

The 7 Types of Memory and How to Improve ThemShort-Term Memory. Short-term memory only lasts 20 to 30 seconds. … Long-Term Memory. Our long-term memories are a bit more complex than our short-term memories. … Explicit Memory. … Episodic Memory. … Semantic Memory. … Implicit Memory. … Procedural Memory. … Testing.More items…•

What are included in the memory hierarchy?

The memory in a computer can be divided into five hierarchies based on the speed as well as use. The processor can move from one level to another based on its requirements. The five hierarchies in the memory are registers, cache, main memory, magnetic discs, and magnetic tapes.

What is register in memory hierarchy?

A register is a very small amount of very fast memory that is built into the CPU (central processing unit) in order to speed up its operations by providing quick access to commonly used values. … Registers are the top of the memory hierarchy and are the fastest way for the system to manipulate data.

What is main memory and its types?

Computer memory is of two basic type – Primary memory(RAM and ROM) and Secondary memory(hard drive,CD,etc.). Random Access Memory (RAM) is primary-volatile memory and Read Only Memory (ROM) is primary-non-volatile memory. It is also called as read write memory or the main memory or the primary memory.

Which is fastest memory?

Fastest memory is cache memory.Registers are temporary memory units that store data and are located in the processor, instead of in RAM, so data can be accessed and stored faster.More items…

How do hierarchies help memory?

With hierarchical arrangements, pieces of information are associated with each other through meaningful links from general to specific types of things.

What is primary and secondary memory?

Primary memory is also called internal memory whereas Secondary memory is also known as a Backup memory or Auxiliary memory. … Primary memory data is directly accessed by the processing unit whereas Secondary memory data cannot be accessed directly by the processor.